CF Monterrey

Carreño started playing professionally in C.F. Monterrey, and made his league debut in August 2008 at 20 years old, in a tie with Atlas in Guadalajara, Jalisco.^[3] He eventually became a very important player for Monterrey. He earned his nickname of "El Amuleto" (The Amulet) due to a long streak of subbing into the match and scoring important goals. He is bound to gain minutes with Monterrey and is a national team strong prospect.

In the season Clausura 2009, Carreño became a very important substitute in club Monterrey's line up. He scored his first ever professional goal in a match against club Indios de Ciudad Juárez, he ended up scoring a total of 5 goals in that season. In Carreño's next season Apertura 2009, Monterrey won the championship for the third time, Carreño scored 4 goals in this season but scored a crucial goal in the semifinal's against Toluca which ended up making the game a 1–1 draw, but 3-1 global score, sending Moterrey to the final, to beat Cruz Azul for the championship. In the next season Bicentenario 2010 Carreño became the top scorer of Monterrey with 7 goals, and an important starter taking the place of Chilean striker Humberto Suazo. Monterrey ended the season in first place with a great record of 10 wins, 6 ties, and 1 loss. but lost in the quarterfinals against Pachuca. Although Carreño could not lead Monterrey to the semifinals, He was still very important through the whole season, and can be a very important player in there line up, for the upcoming season.